netdev - mvpp2: oops on first received packet

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Date:   Tue, 14 May 2019 10:29:31 +0300
From:   Yanko Kaneti <yaneti@...lera.com>
To:     netdev <netdev@...r.kernel.org>
Subject: mvpp2:  oops on first received packet

Hello,

I am trying to get some Fedora working on the MACCHIATObin SingleShot
and I am getting an OOPS on what seems to be the first received packet
on the gigabit port.

I've tried both 5.0.x stable and 5.1.1 with the same result.
Otherwise the port seems to work fine in u-boot (also latest from the
the fedora variety)

-Yanko

..
mvpp2 f4000000.ethernet eth2: Link is Up - 1Gbps/Full - flow control rx/tx
IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
page:ffff7e0001ff1000 count:0 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x1fffe000000000()
raw: 001fffe000000000 ffff7e0001ff1008 ffff7e0001ff1008 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:547!
Internal error: Oops - BUG: 0 [#1] SMP
Modules linked in: crct10dif_ce ghash_ce spi_orion i2c_mux_pca954x i2c_mux sfp mdio_i2c omap_rng mvpp2 armada_thermal phylink marvell sbsa_gwdt mvmdio vfat fat mmc_block rtc_armada38x sdhci_xenon_driver phy_generic sdhci_pltfm xhci_plat_hcd ahci_platform phy_mvebu_cp110_comphy i2c_mv64xxx sdhci fuse
Process swapper/0 (pid: 0, stack limit = 0x0000000058631e79)
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.1.1-300.fc30.aarch64 #1
Hardware name: Marvell mvebu_armada-8k/mvebu_armada-8k, BIOS 2019.04 04/18/2019
pstate: 40400005 (nZcv daif +PAN -UAO)
pc : page_frag_free+0x74/0xa0
lr : page_frag_free+0x74/0xa0
sp : ffff000010003a60
x29: ffff000010003a60 x28: ffff0000117e5480 
x27: 0000000000000000 x26: 0000000000000000 
x25: ffff80007fc40462 x24: ffff80007fc40458 
x23: ffff80007fc40450 x22: ffff0000117dbc00 
x21: ffff8001356c2a00 x20: ffff80007fc404c0 
x19: ffff80007fc40400 x18: 0000000000000000 
x17: 0000000000000000 x16: 0000000000000000 
x15: 0000000000000010 x14: ffffffffffffffff 
x13: ffff00009000375f x12: ffff000010003767 
x11: ffff000011679000 x10: ffff000010eb6428 
x9 : ffff00001185a000 x8 : 00000000000001c7 
x7 : 0000000000000015 x6 : 0000000000000001 
x5 : 0000000000000000 x4 : ffff80013f72a190 
x3 : ffff80013f730488 x2 : ffff80013f72a190 
x1 : 0000000000000000 x0 : 000000000000003e 
Call trace:
 page_frag_free+0x74/0xa0
 skb_free_head+0x28/0x48
 skb_release_data+0x13c/0x178
 skb_release_all+0x30/0x40
 consume_skb+0x38/0xc8
 arp_process+0x2d0/0x6e0
 arp_rcv+0x100/0x178
 __netif_receive_skb_one_core+0x50/0x60
 __netif_receive_skb+0x28/0x70
 netif_receive_skb_internal+0x44/0xd0
 napi_gro_receive+0x198/0x1c8
 mvpp2_rx+0x1f8/0x500 [mvpp2]
 mvpp2_poll+0x150/0x1e8 [mvpp2]
 napi_poll+0xb4/0x250
 net_rx_action+0xbc/0x1b0
 __do_softirq+0x138/0x334
 irq_exit+0xc0/0xe0
 __handle_domain_irq+0x70/0xc0
 gic_handle_irq+0x58/0xa8
 el1_irq+0xf0/0x1c0
 arch_cpu_idle+0x3c/0x1c8
 default_idle_call+0x20/0x3c
 cpuidle_idle_call+0x140/0x190
 do_idle+0xb0/0x108
 cpu_startup_entry+0x2c/0x30
 rest_init+0xc0/0xcc
 arch_call_rest_init+0x14/0x1c
 start_kernel+0x4ac/0x4c0
Code: aa0203e0 d0006101 91226021 9400cf32 (d4210000) 
---[ end trace 267606a8b5fb06cb ]---
Kernel panic - not syncing: Fatal exception in interrupt
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x002,21006000
Memory Limit: none
---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---